Actions
All four quadriceps are powerful extensors of the knee joint. They are crucial in walking, running, jumping and squatting. Because rectus femoris attaches to the ilium, it is also a flexor of the hip. This action is also crucial to walking or running as it swings the leg forward into the ensuing step. The quadriceps, specifically the vastus medialis, plays the important role of stabilizing the patella and the knee joint during gait.
Read more about this topic: Quadriceps Femoris Muscle
Famous quotes containing the word actions:
“We should often be ashamed of our finest actions if the world understood all the motives behind them.”
—François, Duc De La Rochefoucauld (1613–80)
“They are actions that a man might play,
But I have that within which passes show,
These but the trappings and the suits of woe.”
—William Shakespeare (1564–1616)
“The actions of each dancer were scrutinized with great care and any little mistake noted and remembered. The strain upon a dancer was consequently so great that when a fine dancer died soon after a feast it was said, “The peoples’ looks have killed him.””
—Merle Colby, U.S. public relief program (1935-1943)